Improvement in cook-stoves and heaters



`W. G. CAW.- Y

l Cook-'Stoves and Heaters.

N0,l50,654 l, Patented May 5,1874..

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UNITED STATES PATENT OFFICE.

WILLIAIIG'. CAW, 4OF SCHENECTADY, NEW YORK.

IMPROVEMENT IN COOK-STOVES AND HEATERS.l

Specification forming part of Letters Patent No. l 50,654, datedV May 5,1874 application led February 7, 1874.

and valuable Improvement in Cook-Stoves and Heaters; and I do herebydeclare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being had to theannexed drawings making a part of this specification, and t0 the lettersand figures of reference marked thereon.

Figure l of the drawings is a representation of my heating attachment bya vertical section throughit and the corresponding part of acooking-stove. Fig. 2 isa central longitudinal section of the same.

My invention relates to the application of air-tubes to a cook-stove,which communicate with the oven and draw their supply of hot air fromthe same, and carry it around the stove-pipe up into the higher storiesof a building, thereby utilizing the cooking-stove as a hot-airgenerator and room-heater.

A represents an ordinary cooking-stove, with an oven,B, the back ofwhich is provided with openings,which may be opened or. closed by meansof a sliding door, C, with corresponding openings and a handle, c. Thesaid openings effect communication between the oven B and two air-tubes,D D, which are otherwise closed at the sides and bottom. A drum or largepipe, G, receives the hot air from the The damper acts between theair-tubes D D in the same manner and with the same result as in theordinary cooking-stove. The draft takes its course over the oven anddamper e, when the same is open, into the pipe F. When the damper isturned up it closes the aperture between the top of the stove, the oven,and the air-tubes D D, and compels'the draft of the stove to pass downat the back of the oven, and between the sides of the stove and theair-tubes D D, and thence between the sides of the stove and the usualdividingplates under the oven; thence between the said dividing-platesinto the channel or passage E and into the stove-pipe F. The stove-pipepasses through the drum or air-duct Gr, and thereby delivers its ownsurplus heat to the surrounding air. It the room communicating with thestove in the described manner is to be heated gently, the sliding door Cis opened, the doors ofthe oven are closed, and the door at b opened. Ifa greater amount of heat is required, the side doors of the oven areopened.

What I claim as new, and desire to secure by Letters Patent, is-

The vertical passages in the space between the rear of the oven and theback plate of the stove, formed by means of the air-tubes D and centralvertical pipe E, whereby the heated air and products-of combustionpassing from the re over the oven may be shut o' from the exit-pipe andpass down the outside vertical passages adjacent to the air-tubes,thence passing under the oven and lentering the central vertical passageand exit-pipe, substantially as shown and described.

In testimony that I claim the labove I have hereunto subscribed my namein the presence of two witnesses. l

WILLIAM G. CAW. Witnesses: f

GEORGE E. UPHAM, D. D. KANE.

